01_ appropriate use of XML as a programming tool. 02_ Compare and contrast HTML and XML. 03_ Explain the structure of XML. 04_ Explain Document Type Definitions. 05_Create an XML file without DTD. 06_ Evaluate XSL and XSLT. 07_Create an XML file with DTDs. 08_XLINK 09_ Evaluate XLink. 10_ Create an XML file with DTDs and attribute declaration. 11_ Evaluate XHTML. 12_Evaluate appropriate use of XML in organizations. 13_Using XML, with HTML and PHP & MYSQL